Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7394804 | Message conversion server and IP telephone | Tatsuhiko Miyata, Kenichi Sakamoto, Minoru Hidaka, Satoshi Kiyotou, Kazuma Yumoto | 2008-07-01 |
| 7346670 | Secure storage system | Makoto Kitani, Morihito Miyagi, Shinichi Akahane, Masahiko Mizutani | 2008-03-18 |
| 7337465 | Peer-to-peer communication apparatus and communication method | Satoshi Kiyoto, Kazuma Yumoto, Minoru Hidaka | 2008-02-26 |
| 6907006 | Method and apparatus for detecting faults in IP packet communication | Kenichi Sakamoto, Noboru Endo, Toshiki Sugawara, Koji Wakayama | 2005-06-14 |
| 6633571 | VPN composing method, interwork router, packet communication method, data communication apparatus, and packet relaying apparatus | Kenichi Sakamoto, Koji Wakayama, Shiro Tanabe, Noboru Endo | 2003-10-14 |